侦探用英语怎么说？

侦探
detective

侦探
英文：do detective work； detective； spy； espial espionage；
例句：

1. "Once a detective, always a detective," he said lightly.
“一日为侦探，终生为侦探，”他满不在意地说。
2. I don't have to be a detective to figure that out.
我不是侦探也想得出。
3. Detectives hunting the London bombers will be keen to interview him_
追查伦敦爆炸案凶犯的侦探们急于对他进行讯问。

The detective